A new pyrene-based Schiff-base: A selective colorimetric and fluorescent chemosensor for detection of Cu(II) and Fe(III)

Pyrene or rhodamine derivative–modified surfaces of electrospun nanofibrous chemosensors for colorimetric and fluorescent determination of Cu 2+ , Hg 2+ , and pH

“…Cu 2+ is the third most abundant essential transition metal ion in the human body, and it plays a major role in various biological processes [11,12]. Fluorescent chemosensors based on rhodamine B derivatives (RhBs) and pyrenederivatives (Pys) are both satisfactory probes for sensing various HTM cations including Hg 2+ , Cu 2+ , and pH because of their unique properties such as a high fluorescence quantum yield, a high absorption coefficient, and high sensitivity [13][14][15][16][17][18][19][20]. However, most of the mentioned studies have focused on the solution, thin film, and bulk solid states [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Dual colorimetric and fluorescent chemosensor of Fe3+ and Cu2+ based on 2,5-bis[(4-carboxylic-piperidylamino)thiophenyl]-croconine

“…2 The deficiency of Fe 3þ causes anemia, hemochromatosis, liver damage, diabetes, Parkinson's disease and cancer. 3 Copper, another heavy metal ion, plays a pivotal role, that is, utilized as a catalytic cofactor for various metalloenzymes, including superoxide dismutase, cytochrome c oxidase, tyrosinase and nuclease. 4,5 However, if the intake of copper exceeds cellular needs, copper exhibits toxicity, causing serious neurodegenerative diseases, such as Alzheimer's, Menkes and Wilson's diseases due to the displacement of other vital metal ions in enzyme-catalyzed reactions.…”

A Novel Naphthalene-Immobilized Nanoporous SBA-15 as a Highly Selective Optical Sensor for Detection of Fe3+ in Water

“…However, both its deficiency and excess accumulation are associated to the various disorders such as anemia, damage to the liver and kidney and Alzheimer's and Parkinson's diseases [7][8][9][10]. Indeed, there are very promising Fe 3+ -fluorescent sensor which were prepared in a simple procedure and were able to detect this ion in trace amount [11][12][13][14]. Since Fe 3+ is mostly occurred in aqueous media, it is of great importance that the sensor be able of on-line detection of this ion directly in water.…”